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1. 发明申请

US20090164762A1 OPTIMIZING XOR-BASED CODES 有权
标题翻译：优化基于异或的代码
公开(公告)号：US20090164762A1
公开(公告)日：2009-06-25
申请号：US11961866
申请日：2007-12-20
申请人： Cheng Huang , Jin Li , Minghua Chen
发明人： Cheng Huang , Jin Li , Minghua Chen
IPC分类号： G06F9/305
CPC分类号： H03M13/033 , H03M13/1515 , H03M13/373 , H03M13/611 , H03M13/6502
摘要： A “code optimizer” provides various techniques for optimizing arbitrary XOR-based codes for encoding and/or decoding of data. Further, the optimization techniques enabled by the code optimizer do not depend on any underlining code structure. Therefore, the optimization techniques provided by the code optimizer are applicable to arbitrary codes with arbitrary redundancy. As such, the optimized XOR-based codes generated by the code optimizer are more flexible than specially designed codes, and allow for any desired level of fault tolerance. Typical uses of XOR-based codes include, for example, encoding and/or decoding data using redundant data packets for data transmission real-time communications systems, encoding and/or decoding operations for storage systems such as RAID arrays, etc.
摘要翻译： “代码优化器”提供了用于优化用于对数据进行编码和/或解码的任意基于XOR的代码的各种技术。此外，由代码优化器启用的优化技术不依赖于任何下划线的代码结构。因此，代码优化器提供的优化技术适用于任意冗余的任意代码。因此，由代码优化器生成的优化的基于XOR的代码比特别设计的代码更灵活，并允许任何期望的容错级别。基于XOR的代码的典型用途包括例如使用用于数据传输实时通信系统的冗余数据分组来编码和/或解码数据，用于存储系统例如RAID阵列等的编码和/或解码操作。

2. 发明申请

US20080222480A1 ERASURE-RESILIENT CODES HAVING MULTIPLE PROTECTION GROUPS 有权
标题翻译：具有多个保护组的耐腐蚀编码
公开(公告)号：US20080222480A1
公开(公告)日：2008-09-11
申请号：US11684584
申请日：2007-03-09
申请人： Cheng Huang , Minghua Chen , Jin Li
发明人： Cheng Huang , Minghua Chen , Jin Li
IPC分类号： H03M13/00
CPC分类号： H03M13/27 , H03M13/1191 , H03M13/15 , H03M13/1515 , H03M13/2906 , H03M13/2909 , H03M13/2918 , H03M13/2921 , H03M13/373
摘要： A multiple protection group (MPG) erasure-resilient coding method for constructing MPG codes for encoding and decoding data. The MPG codes constructed herein protect data chunks of data in multiple protection groups and subgroups. In general, the MPG erasure-resilient codes are constructed by locating data chunks into multiple protection groups and assigning at least one parity chunk to each protection group. Basic MPG codes are constructed from existing Maximum Distance Separable (MDS) codes by splitting at least some of the parity chunks into local parities for each of the multiple protection groups and projecting local parities onto each of the groups. Generalized MPG codes have a Maximally Recoverable property that can be used to determine whether an erasure pattern is recoverable or unrecoverable. Generalized MPG codes can recover any erasure pattern that is recoverable.
摘要翻译：一种用于构建用于对数据进行编码和解码的MPG代码的多重保护组（MPG）擦除弹性编码方法。本文构建的MPG代码保护多个保护组和子组中的数据块数据。通常，通过将数据块定位到多个保护组中并且将至少一个奇偶校验块分配给每个保护组来构建MPG擦除恢复代码。通过将至少一些奇偶校验块分割成多个保护组中的每一个的本地奇偶校验，并将局部奇偶校验投影到每个组上，从现有的最大距离可分离（MDS）码构建基本MPG码。广义MPG代码具有最大可恢复属性，可用于确定擦除模式是可恢复还是不可恢复。广义MPG代码可以恢复可恢复的任何擦除模式。

3. 发明授权

US08209577B2 Optimizing XOR-based codes 有权
标题翻译：优化基于XOR的代码
公开(公告)号：US08209577B2
公开(公告)日：2012-06-26
申请号：US11961866
申请日：2007-12-20
申请人： Cheng Huang , Jin Li , Minghua Chen
发明人： Cheng Huang , Jin Li , Minghua Chen
IPC分类号： H03M13/00
CPC分类号： H03M13/033 , H03M13/1515 , H03M13/373 , H03M13/611 , H03M13/6502
摘要： A “code optimizer” provides various techniques for optimizing arbitrary XOR-based codes for encoding and/or decoding of data. Further, the optimization techniques enabled by the code optimizer do not depend on any underlining code structure. Therefore, the optimization techniques provided by the code optimizer are applicable to arbitrary codes with arbitrary redundancy. As such, the optimized XOR-based codes generated by the code optimizer are more flexible than specially designed codes, and allow for any desired level of fault tolerance. Typical uses of XOR-based codes include, for example, encoding and/or decoding data using redundant data packets for data transmission real-time communications systems, encoding and/or decoding operations for storage systems such as RAID arrays, etc.
摘要翻译： “代码优化器”提供了用于优化用于对数据进行编码和/或解码的任意基于XOR的代码的各种技术。此外，由代码优化器启用的优化技术不依赖于任何下划线的代码结构。因此，代码优化器提供的优化技术适用于任意冗余的任意代码。因此，由代码优化器生成的优化的基于XOR的代码比特别设计的代码更灵活，并允许任何期望的容错级别。基于XOR的代码的典型用途包括例如使用用于数据传输实时通信系统的冗余数据分组来编码和/或解码数据，用于存储系统例如RAID阵列等的编码和/或解码操作。

4. 发明授权

US07930611B2 Erasure-resilient codes having multiple protection groups 有权
标题翻译：具有多个保护组的擦除恢复代码
公开(公告)号：US07930611B2
公开(公告)日：2011-04-19
申请号：US11684584
申请日：2007-03-09
申请人： Cheng Huang , Minghua Chen , Jin Li
发明人： Cheng Huang , Minghua Chen , Jin Li
IPC分类号： H03M13/00
CPC分类号： H03M13/27 , H03M13/1191 , H03M13/15 , H03M13/1515 , H03M13/2906 , H03M13/2909 , H03M13/2918 , H03M13/2921 , H03M13/373
摘要： A multiple protection group (MPG) erasure-resilient coding method for constructing MPG codes for encoding and decoding data. The MPG codes constructed herein protect data chunks of data in multiple protection groups and subgroups. In general, the MPG erasure-resilient codes are constructed by locating data chunks into multiple protection groups and assigning at least one parity chunk to each protection group. Basic MPG codes are constructed from existing Maximum Distance Separable (MDS) codes by splitting at least some of the parity chunks into local parities for each of the multiple protection groups and projecting local parities onto each of the groups. Generalized MPG codes have a Maximally Recoverable property that can be used to determine whether an erasure pattern is recoverable or unrecoverable. Generalized MPG codes can recover any erasure pattern that is recoverable.
摘要翻译：一种用于构建用于对数据进行编码和解码的MPG代码的多重保护组（MPG）擦除弹性编码方法。本文构建的MPG代码保护多个保护组和子组中的数据块数据。通常，通过将数据块定位到多个保护组中并且将至少一个奇偶校验块分配给每个保护组来构建MPG擦除恢复代码。通过将至少一些奇偶校验块分割成多个保护组中的每一个的本地奇偶校验，并将局部奇偶校验投影到每个组上，从现有的最大距离可分离（MDS）码构建基本MPG码。广义MPG代码具有最大可恢复属性，可用于确定擦除模式是可恢复还是不可恢复。广义MPG代码可以恢复可恢复的任何擦除模式。

5. 发明申请

US20080222481A1 MULTIPLE PROTECTION GROUP CODES HAVING MAXIMALLY RECOVERABLE PROPERTY 失效
标题翻译：具有最大可恢复性能的多个保护组编码
公开(公告)号：US20080222481A1
公开(公告)日：2008-09-11
申请号：US11684589
申请日：2007-03-09
申请人： Cheng Huang , Minghua Chen , Jin Li
发明人： Cheng Huang , Minghua Chen , Jin Li
IPC分类号： H03M13/00
CPC分类号： H03M13/2921 , H03M13/1191 , H03M13/15 , H03M13/1515 , H03M13/2703 , H03M13/2906 , H03M13/2909 , H03M13/2918
摘要： A multiple protection group (MPG) erasure-resilient coding method for constructing MPG codes for encoding and decoding data. The MPG codes constructed herein protect data chunks of data in multiple protection groups and subgroups. In general, the MPG erasure-resilient codes are constructed by locating data chunks into multiple protection groups and assigning at least one parity chunk to each protection group. Basic MPG codes are constructed from existing Maximum Distance Separable (MDS) codes by splitting at least some of the parity chunks into local parities for each of the multiple protection groups and projecting local parities onto each of the groups. Generalized MPG codes have a Maximally Recoverable property that can be used to determine whether an erasure pattern is recoverable or unrecoverable. Generalized MPG codes can recover any erasure pattern that is recoverable.
摘要翻译：一种用于构建用于对数据进行编码和解码的MPG代码的多重保护组（MPG）擦除弹性编码方法。本文构建的MPG代码保护多个保护组和子组中的数据块数据。通常，通过将数据块定位到多个保护组中并且将至少一个奇偶校验块分配给每个保护组来构建MPG擦除恢复代码。通过将至少一些奇偶校验块分割成多个保护组中的每一个的本地奇偶校验，并将局部奇偶校验投影到每个组上，从现有的最大距离可分离（MDS）码构建基本MPG码。广义MPG代码具有最大可恢复属性，可用于确定擦除模式是可恢复还是不可恢复。广义MPG代码可以恢复可恢复的任何擦除模式。

6. 发明授权

US07904782B2 Multiple protection group codes having maximally recoverable property 失效
标题翻译：具有最大可恢复性能的多个保护组代码
公开(公告)号：US07904782B2
公开(公告)日：2011-03-08
申请号：US11684589
申请日：2007-03-09
申请人： Cheng Huang , Minghua Chen , Jin Li
发明人： Cheng Huang , Minghua Chen , Jin Li
IPC分类号： H03M13/00
CPC分类号： H03M13/2921 , H03M13/1191 , H03M13/15 , H03M13/1515 , H03M13/2703 , H03M13/2906 , H03M13/2909 , H03M13/2918
摘要： A multiple protection group (MPG) erasure-resilient coding method for constructing MPG codes for encoding and decoding data. The MPG codes constructed herein protect data chunks of data in multiple protection groups and subgroups. In general, the MPG erasure-resilient codes are constructed by locating data chunks into multiple protection groups and assigning at least one parity chunk to each protection group. Basic MPG codes are constructed from existing Maximum Distance Separable (MDS) codes by splitting at least some of the parity chunks into local parities for each of the multiple protection groups and projecting local parities onto each of the groups. Generalized MPG codes have a Maximally Recoverable property that can be used to determine whether an erasure pattern is recoverable or unrecoverable. Generalized MPG codes can recover any erasure pattern that is recoverable.
摘要翻译：一种用于构建用于对数据进行编码和解码的MPG代码的多重保护组（MPG）擦除弹性编码方法。本文构建的MPG代码保护多个保护组和子组中的数据块数据。通常，通过将数据块定位到多个保护组中并且将至少一个奇偶校验块分配给每个保护组来构建MPG擦除恢复代码。通过将至少一些奇偶校验块分割成多个保护组中的每一个的本地奇偶校验，并将局部奇偶校验投影到每个组上，从现有的最大距离可分离（MDS）码构建基本MPG码。广义MPG代码具有最大可恢复属性，可用于确定擦除模式是可恢复还是不可恢复。广义MPG代码可以恢复可恢复的任何擦除模式。

7. 发明授权

US09059817B2 Minimizing network latency in interactive internet applications 有权
标题翻译：最大限度地减少交互式互联网应用中的网络延迟
公开(公告)号：US09059817B2
公开(公告)日：2015-06-16
申请号：US12951908
申请日：2010-11-22
申请人： Cheng Huang , Jin Li , Sanjeev Mehrotra , Philip A. Chou , Felix Livni , Hao Chen , Jay Thaler , Chao Zhang , Keith W. Ross
发明人： Cheng Huang , Jin Li , Sanjeev Mehrotra , Philip A. Chou , Felix Livni , Hao Chen , Jay Thaler , Chao Zhang , Keith W. Ross
IPC分类号： H04J3/16 , H04L12/26 , H04J3/00 , H04L1/00 , H04L1/18
CPC分类号： H04L1/0009 , H04L1/1812 , H04L1/188
摘要： A method and system that enhances a user's performance while interacting with an interactive internet application such as a Massively Multiplayer Online (MMO) game is provided. The network latency experienced by users participating in the MMO game is minimized by dynamically determining an optimal transmission action for a message generated by the MMO game. In one embodiment, determining the optimal transmission action for a message includes dynamically determining the optimal number of redundant Forward Error Correction (FEC) packets to add to a message prior to transmitting a message to a receiving device. The optimal number of FEC packets is determined based on a wide range of varying network conditions.
摘要翻译：提供了一种在与诸如大型多人在线（MMO）游戏之类的交互式互联网应用交互的同时增强用户表现的方法和系统。通过动态地确定由MMO游戏产生的消息的最佳传输动作，使参与MMO游戏的用户经历的网络延迟最小化。在一个实施例中，确定消息的最佳传输动作包括在将消息发送到接收设备之前动态地确定要添加到消息的冗余前向纠错（FEC）分组的最佳数量。基于广泛的变化的网络条件来确定FEC分组的最佳数量。

8. 发明授权

US08335163B2 Quality of service (QOS) based systems, networks, and advisors 有权
标题翻译：基于服务质量（QOS）的系统，网络和顾问
公开(公告)号：US08335163B2
公开(公告)日：2012-12-18
申请号：US12606882
申请日：2009-10-27
申请人： Jin Li , Cheng Huang , Ye Wang , Richard R Yang
发明人： Jin Li , Cheng Huang , Ye Wang , Richard R Yang
IPC分类号： H04J1/16
CPC分类号： H04L43/12 , H04B17/24 , H04B17/309 , H04B17/382 , H04L43/10
摘要： Techniques and technologies for routing communications based on Quality of Service (QOS) related information. More particularly, this document discloses techniques and technologies for selecting communications paths which partially overlap other communication paths for which QOS related information has been measured. The techniques and technologies include determining, performance levels for path segments within the communication paths from the measured QOS information.
摘要翻译：基于服务质量（QOS）相关信息路由通信的技术和技术。更具体地说，本文件公开了用于选择部分地与已经测量了QOS相关信息的其他通信路径重叠的通信路径的技术和技术。技术和技术包括从测量的QOS信息确定通信路径内的路径段的性能水平。

9. 发明申请

US20120173932A1 STORAGE CODES FOR DATA RECOVERY 有权
标题翻译：用于数据恢复的存储代码
公开(公告)号：US20120173932A1
公开(公告)日：2012-07-05
申请号：US12983225
申请日：2010-12-31
申请人： Jin Li , Viveck Cadambe , Cheng Huang
发明人： Jin Li , Viveck Cadambe , Cheng Huang
IPC分类号： G06F11/34
CPC分类号： G06F11/1076
摘要： A random permutation code is described which provides efficient repair of data nodes. A specific implementation of a permutation code is also described, followed by description of a MISER-Permutation code. Finally, an optimal repair strategy is explained that involves an iterative process of downloading the most effective available parity data, updating costs of remaining parity data, and repeating until the data is recovered.
摘要翻译：描述了提供数据节点的有效修复的随机置换代码。还描述了置换代码的具体实现，随后描述了MISER置换代码。最后，解释了最佳修复策略，其涉及下载最有效的可用奇偶校验数据，更新剩余奇偶校验数据的成本并重复直到数据恢复的迭代过程。

10. 发明申请

US20110270964A1 USING DNS REFLECTION TO MEASURE NETWORK PERFORMANCE 有权
标题翻译：使用DNS反射来衡量网络性能
公开(公告)号：US20110270964A1
公开(公告)日：2011-11-03
申请号：US12769270
申请日：2010-04-28
申请人： Cheng Huang , Nicholas Leonard Holt , Albert G. Greenberg , Jin Li
发明人： Cheng Huang , Nicholas Leonard Holt , Albert G. Greenberg , Jin Li
IPC分类号： G06F15/173 , G06F15/16
CPC分类号： H04L61/1511 , H04L29/12066 , H04L43/0864
摘要： A top level domain name system (DNS) server receives a DNS query from a local DNS resolver, the DNS query requesting a network address corresponding to a domain name. The top level DNS server reflects the local DNS resolver to a reflector DNS server. The reflector DNS server reflects the local DNS resolver to a collector DNS server, which in turn returns the network address to the local DNS resolver. The reflector DNS server and collector DNS server are both in the same data center, and one or more network performance measurements for communications between the local DNS resolver and the data center are determined based on the communications between the local DNS resolver and both the reflector DNS server and the collector DNS server.
摘要翻译：顶级域名系统（DNS）服务器从本地DNS解析器接收DNS查询，DNS查询请求与域名相对应的网络地址。顶级DNS服务器将本地DNS解析器反映到反射器DNS服务器。反射器DNS服务器将本地DNS解析器反映到收集器DNS服务器，该服务器又将网络地址返回到本地DNS解析器。反射器DNS服务器和收集器DNS服务器都在相同的数据中心，并且基于本地DNS解析器与反射器DNS之间的通信来确定本地DNS解析器和数据中心之间的通信的一个或多个网络性能测量服务器和收集器DNS服务器。

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